Sue Daly / Koheru (Decapterus koheru) shoal swiming around diver, Cavalli Islands, New Zealand, February 2013. Model released.

Franco Banfi / Scuba diver under ice and ice formation, Arctic circle Dive Center, White Sea, Karelia, northern Russia March 2010. No release available.

Todd Mintz / Iceberg dive, diver next to ice floe, Pond Inlet, Baffin Island, Nunavut, Canada, June

Matthew Maran / Surfer Benj Yougson at Long Beach. Pacific Rim National Park Reserve, west coast of Vancouver Island, Canada, September 2010. Model released

Juergen Freund / Light streaming into a shallow cave in a dive site called The Passage, with a diver swimming up towards the foliage visible above. North Raja Ampat, West Papua, Indonesia, February 2010. Model release...

Juergen Freund / Snorkeler swimming underwater, split level, with Miniloc Island Resort in the background, El Nido, Palawan, Philippines, May 2009. Model released

Michele Westmorland / Split level view of scuba diver with PR Aquanauts boat in Grenada, Caribbean. May 2009. Property released and diver model released.

Jeff Rotman / Shark expert Neal Watson fighting off a Lemon shark (Negaprion brevirostris) with a shark club, The Bahamas, Caribbean. (model released) Model released.

Jerry Monkman / Researchers searching for freshwater mussels in the Ashuelot River, Keene, New Hampshire, USA, September 2006.

Jurgen Freund / Jo Browne and Kade Mills use a cylinder cone shaped plankton net to sample gelatinous zooplankton for Coral Reef census, Lizard Island, Queensland, Australia, April 2008. Not released

Juergen Freund / Charlotte Watson snorkels down to collect sand which may contain polychaete worms, Coral Reef census, Lizard Island, Queensland, Australia, April 2008. Model released

David Fleetham / Diver hanging on a line at 15 feet for a decompression stop before surfacing. Kauai, Hawaii. March 2016. Model released.